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Applications of Computational Methods for Dynamic Stability and Control DerivativesInitial steps in the application o f a low-order panel method computational fluid dynamic (CFD) code to the calculation of aircraft dynamic stability and control (S&C) derivatives are documented. Several capabilities, unique to CFD but not unique to this particular demonstration, are identified and demonstrated in this paper. These unique capabilities complement conventional S&C techniques and they include the ability to: 1) perform maneuvers without the flow-kinematic restrictions and support interference commonly associated with experimental S&C facilities, 2) easily simulate advanced S&C testing techniques, 3) compute exact S&C derivatives with uncertainty propagation bounds, and 4) alter the flow physics associated with a particular testing technique from those observed in a wind or water tunnel test in order to isolate effects. Also presented are discussions about some computational issues associated with the simulation of S&C tests and selected results from numerous surface grid resolution studies performed during the course of the study.
Document ID
20040035791
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Green, Lawrence L. (NASA Langley Research Center Hampton, VA, United States)
Spence, Angela M. (Mississippi State Univ. Mississippi State, MS, United States)
Date Acquired
August 21, 2013
Publication Date
January 1, 2004
Subject Category
Aircraft Stability And Control
Report/Patent Number
AIAA Paper 2004-0377
Meeting Information
Meeting: 42nd AIAA Applied Aerospace Sciences
Location: Reno, NV
Country: United States
Start Date: January 5, 2004
End Date: January 8, 2004
Sponsors: American Inst. of Aeronautics and Astronautics
Funding Number(s)
OTHER: 23-762-20-31
Distribution Limits
Public
Copyright
Public Use Permitted.

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